Likely audio improvements : minimal to nil .... with a high probability of the latter.
Which Denon Receiver for my home theater?
I am building out a home theater. I currently have a Denon-540 in my living room, and I really like it. I am wondering how much improvement in sound and cinematic experience if I stepped up to a S650H-R, S750H-R, S960H-R, or X1600H-R. I would likely be using the maxinum number of speakers with each of these receivers. The price spans from $230 for the 540 to $500 for the 1600.
Also, side question, what is the difference in the "H" models and the "H-R" models?